libs/FreeModbus_Slave-Master-RTT-STM32
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FreeModbus_Slave-Master-RTT-STM32
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FreeModbus_Slave-Master-RTT.../APP/src/UserModbusSlaver.c

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1、【增加】FreeModbus从机，保持寄存器测试没问题，其余功能有待测试。3个IDE编译运行后，获取的CPU利用率不一致问题，有待进一步解决 2、【修改】IAR、Keil工程中启动文件，及部分CM3相关的文件，解决之前工程配置遗留下来的问题 3、【增加】RTT的CPU利用率更新至Modbus保持寄存器的功能 Signed-off-by: armink <armink.ztl@gmail.com>
2013-08-03 11:39:51 +08:00
#include "UserModbusSlaver.h"
/* ----------------------- Variables ---------------------------------*/
USHORT usDiscreteInputStart = DISCRETE_INPUT_START;
UCHAR usDiscreteInputBuf[DISCRETE_INPUT_NDISCRETES/8] ;
USHORT usCoilStart = COIL_START;
UCHAR usCoilBuf[COIL_NCOILS/8] ;
USHORT usRegInputStart = REG_INPUT_START;
USHORT usRegInputBuf[REG_INPUT_NREGS] ;
USHORT usRegHoldingStart = REG_HOLDING_START;
USHORT usRegHoldingBuf[REG_HOLDING_NREGS] ;
//******************************<2A><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>**********************************
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: eMBErrorCode eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
//<2F><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĹ<D8B5><C4B9>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>pucRegBuffer : <20>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Modbus<75>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>ĵ<EFBFBD>ǰֵд<D6B5><D0B4><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>
// usAddress : <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>Χ<EFBFBD><CEA7>1-65535<33><35>
// usNRegs : <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>eMBErrorCode : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĴ<D8B5><C4B4><EFBFBD><EFBFBD><EFBFBD>
//<2F><> ע<><D7A2>Editor<6F><72>Armink 2010-10-31 Company: BXXJS
//**********************************************************************************
eMBErrorCode
eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
{
eMBErrorCode eStatus = MB_ENOERR;
int iRegIndex;
if( ( usAddress >= REG_INPUT_START )
&& ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
{
iRegIndex = ( int )( usAddress - usRegInputStart );
while( usNRegs > 0 )
{
*pucRegBuffer++ = ( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
*pucRegBuffer++ = ( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
iRegIndex++;
usNRegs--;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
//******************************<2A><><EFBFBD>ּĴ<D6BC><C4B4><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>**********************************
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: eMBErrorCode eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs, eMBRegisterMode eMode )
//<2F><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ּĴ<D6BC><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĹ<D8B5><C4B9>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>pucRegBuffer : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>µļĴ<C4BC><C4B4><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>
// <20><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>ջ<EFBFBD><D5BB>֪<EFBFBD><D6AA><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뽫<EFBFBD><EBBDAB>ǰֵд<D6B5><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// usAddress : <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7>
// usNRegs : <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// eMode : <20><><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ΪeMBRegisterMode::MB_REG_WRITE<54><45><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>pucRegBuffer<65>еõ<D0B5><C3B5><EFBFBD><EFBFBD>¡<EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ΪeMBRegisterMode::MB_REG_READ<41><44><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ݴ洢<DDB4><E6B4A2>pucRegBuffer<65><72>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>eMBErrorCode : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĴ<D8B5><C4B4><EFBFBD><EFBFBD><EFBFBD>
//<2F><> ע<><D7A2>Editor<6F><72>Armink 2010-10-31 Company: BXXJS
//**********************************************************************************
eMBErrorCode
eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs, eMBRegisterMode eMode )
{
eMBErrorCode eStatus = MB_ENOERR;
int iRegIndex;
if( ( usAddress >= REG_HOLDING_START ) &&
( usAddress + usNRegs <= REG_HOLDING_START + REG_HOLDING_NREGS ) )
{
iRegIndex = ( int )( usAddress - usRegHoldingStart );
switch ( eMode )
{
/* Pass current register values to the protocol stack. */
case MB_REG_READ:
while( usNRegs > 0 )
{
*pucRegBuffer++ = ( unsigned char )( usRegHoldingBuf[iRegIndex] >> 8 );
*pucRegBuffer++ = ( unsigned char )( usRegHoldingBuf[iRegIndex] & 0xFF );
iRegIndex++;
usNRegs--;
}
break;
/* Update current register values with new values from the
* protocol stack. */
case MB_REG_WRITE:
while( usNRegs > 0 )
{
usRegHoldingBuf[iRegIndex] = *pucRegBuffer++ << 8;
usRegHoldingBuf[iRegIndex] |= *pucRegBuffer++;
iRegIndex++;
usNRegs--;
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
//****************************<2A><>Ȧ״̬<D7B4>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>********************************
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: eMBErrorCode eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils, eMBRegisterMode eMode )
//<2F><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȧ״̬<D7B4>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĹ<D8B5><C4B9>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>pucRegBuffer : λ<><CEBB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD>ʼ<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>λ<EFBFBD><CEBB><EFBFBD>ڸ<EFBFBD><DAB8>ֽ<EFBFBD>pucRegBuffer<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λLSB<53><42>
// <20><><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD>Ȧ<EFBFBD><C8A6><EFBFBD><EFBFBD><EFBFBD>粻<EFBFBD><E7B2BB>8<EFBFBD><38>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȧ״̬<D7B4><CCAC><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ0<CEBB><30>
// usAddress : <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ȧ<EFBFBD><C8A6>ַ<EFBFBD><D6B7>
// usNCoils : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȧ<EFBFBD><C8A6><EFBFBD><EFBFBD>
// eMode <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ΪeMBRegisterMode::MB_REG_WRITE<54><45><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>pucRegBuffer<65>еõ<D0B5><C3B5><EFBFBD><EFBFBD>¡<EFBFBD>
// <20><><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><C3B2><EFBFBD>ΪeMBRegisterMode::MB_REG_READ<41><44><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ݴ洢<DDB4><E6B4A2>pucRegBuffer<65><72>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>eMBErrorCode : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĴ<D8B5><C4B4><EFBFBD><EFBFBD><EFBFBD>
//<2F><> ע<><D7A2>Editor<6F><72>Armink 2010-10-31 Company: BXXJS
//**********************************************************************************
eMBErrorCode
eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils, eMBRegisterMode eMode )
{
eMBErrorCode eStatus = MB_ENOERR;
int iRegIndex , iRegBitIndex , iNReg;
iNReg = usNCoils / 8 + 1; //ռ<>üĴ<C3BC><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if( ( usAddress >= COIL_START ) &&
( usAddress + usNCoils <= COIL_START + COIL_NCOILS ) )
{
iRegIndex = ( int )( usAddress - usCoilStart ) / 8 ; //ÿ<><C3BF><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>8<EFBFBD><38>
iRegBitIndex = ( int )( usAddress - usCoilStart ) % 8 ; //<2F><><EFBFBD><EFBFBD><EFBFBD>ڼĴ<DABC><C4B4><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>λ<EFBFBD><CEBB>ַ
switch ( eMode )
{
/* Pass current coil values to the protocol stack. */
case MB_REG_READ:
while( iNReg > 0 )
{
*pucRegBuffer++ = xMBUtilGetBits(&usCoilBuf[iRegIndex++] , iRegBitIndex , 8);
iNReg --;
}
pucRegBuffer --;
usNCoils = usNCoils % 8; //<2F><><EFBFBD>µ<EFBFBD><C2B5><EFBFBD>Ȧ<EFBFBD><C8A6>
*pucRegBuffer = *pucRegBuffer <<(8 - usNCoils); //<2F><>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>
*pucRegBuffer = *pucRegBuffer >>(8 - usNCoils);
break;
/* Update current coil values with new values from the
* protocol stack. */
case MB_REG_WRITE:
while(iNReg > 1) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
xMBUtilSetBits(&usCoilBuf[iRegIndex++] , iRegBitIndex , 8 , *pucRegBuffer++);
iNReg--;
}
usNCoils = usNCoils % 8; //<2F><><EFBFBD>µ<EFBFBD><C2B5><EFBFBD>Ȧ<EFBFBD><C8A6>
xMBUtilSetBits(&usCoilBuf[iRegIndex++] , iRegBitIndex , usNCoils , *pucRegBuffer++);
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
//****************************<2A><>ɢ<EFBFBD><C9A2><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>********************************
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: eMBErrorCode eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
//<2F><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɢ<EFBFBD><C9A2><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĹ<D8B5><C4B9>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>pucRegBuffer : <20>õ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>Ȧ<EFBFBD><C8A6><EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>λ<EFBFBD><CEBB><EFBFBD>ڸ<EFBFBD><DAB8>ֽ<EFBFBD>pucRegBuffer<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λLSB<53><42>
// <20><><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD>Ȧ<EFBFBD><C8A6><EFBFBD><EFBFBD><EFBFBD>粻<EFBFBD><E7B2BB>8<EFBFBD><38>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȧ״̬<D7B4><CCAC><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30>
// usAddress : <20><>ɢ<EFBFBD><C9A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ
// usNDiscrete : <20><>ɢ<EFBFBD><C9A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//<2F><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>eMBErrorCode : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĴ<D8B5><C4B4><EFBFBD><EFBFBD><EFBFBD>
//<2F><> ע<><D7A2>Editor<6F><72>Armink 2010-10-31 Company: BXXJS
//**********************************************************************************
eMBErrorCode
eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
{
eMBErrorCode eStatus = MB_ENOERR;
int iRegIndex , iRegBitIndex , iNReg;
iNReg = usNDiscrete / 8 + 1; //ռ<>üĴ<C3BC><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if( ( usAddress >= DISCRETE_INPUT_START )
&& ( usAddress + usNDiscrete <= DISCRETE_INPUT_START + DISCRETE_INPUT_NDISCRETES ) )
{
iRegIndex = ( int )( usAddress - usDiscreteInputStart ) / 8 ; //ÿ<><C3BF><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>8<EFBFBD><38>
iRegBitIndex = ( int )( usAddress - usDiscreteInputStart ) % 8 ; //<2F><><EFBFBD><EFBFBD><EFBFBD>ڼĴ<DABC><C4B4><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>λ<EFBFBD><CEBB>ַ
while( iNReg > 0 )
{
*pucRegBuffer++ = xMBUtilGetBits(&usDiscreteInputBuf[iRegIndex++] , iRegBitIndex , 8);
iNReg --;
}
pucRegBuffer --;
usNDiscrete = usNDiscrete % 8; //<2F><><EFBFBD>µ<EFBFBD><C2B5><EFBFBD>Ȧ<EFBFBD><C8A6>
*pucRegBuffer = *pucRegBuffer <<(8 - usNDiscrete); //<2F><>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>
*pucRegBuffer = *pucRegBuffer >>(8 - usNDiscrete);
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}